Global Patent Index - EP 3974092 B1

EP 3974092 B1 20240417 - ARC WELDING METHOD

Title (en)

ARC WELDING METHOD

Title (de)

LICHTBOGENSCHWEISSVERFAHREN

Title (fr)

PROCÉDÉ DE SOUDAGE À L'ARC

Publication

EP 3974092 B1 20240417 (EN)

Application

EP 20810167 A 20200521

Priority

  • JP 2019096032 A 20190522
  • JP 2020020066 W 20200521

Abstract (en)

[origin: US2022055134A1] Arc welding, in which a welding wire serving as a consumable electrode is fed toward a base material and a welding current alternately including a peak current and a base current is caused to flow through the welding wire and the base material, is performed such that after a short-circuit between the welding wire and the base material is detected, a feeding speed of the welding wire is changed from a first feeding speed to a second feeding speed that is on a negative side from the first feeding speed when a speed in a direction in which the welding wire is fed toward the base material is defined as positive.

IPC 8 full level

B23K 9/073 (2006.01); B23K 9/09 (2006.01); B23K 9/095 (2006.01); B23K 9/12 (2006.01); B23K 9/173 (2006.01)

CPC (source: EP US)

B23K 9/073 (2013.01 - EP); B23K 9/0732 (2013.01 - US); B23K 9/09 (2013.01 - US); B23K 9/092 (2013.01 - EP); B23K 9/095 (2013.01 - US); B23K 9/0953 (2013.01 - EP); B23K 9/0956 (2013.01 - EP); B23K 9/125 (2013.01 - EP US); B23K 9/173 (2013.01 - EP)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

US 2022055134 A1 20220224; CN 113825580 A 20211221; CN 113825580 B 20231024; EP 3974092 A1 20220330; EP 3974092 A4 20220706; EP 3974092 B1 20240417; EP 4342617 A2 20240327; EP 4342617 A3 20240619; JP 7489582 B2 20240524; JP WO2020235620 A1 20201126; WO 2020235620 A1 20201126

DOCDB simple family (application)

US 202117520767 A 20211108; CN 202080036142 A 20200521; EP 20810167 A 20200521; EP 24156013 A 20200521; JP 2020020066 W 20200521; JP 2021520836 A 20200521